Rotatable storage unit



FIG. 1 is a top plan view of a rotatable storage unit showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof; and

FIG. 7 is a sectional view thereof taken along line 7--7 of FIG. 2. 

The ornamental design for a rotatable storage unit, as shown and described. 